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Table 1 Pool composition according to family (F) and MHC type (BT)

From: Mapping QTL affecting resistance to Marek's disease in an F6 advanced intercross population of commercial layer chickens

F BT Total No. Resistant Susceptible
    No. Prop No. Mean Range
1 2/15 144 30 0.51 29 59.1 30–73
  2/2 51 27 0.44 12 59.8 30–73
  2/21 - - - 12 94.0 73–113
  15/15 96 30 0.71 19 70.8 30–115
2 2/15 110 30 0.62 22 65.0 46–84
  2/2 70 30 0.49 14 68.9 17–92
  15/15 51 29 0.57 10 66.2 43–79
  15/151 - - - 10 103.6 80–123
3 2/15 136 30 0.26 20 53.6 30–64
  2/2 83 26 0.31 16 52.6 39–62
  15/15 52 17 0.33 10 63.2 48–73
  15/151 - - - 10 79.7 74–90
4 2/15 62 25 0.40 12 50.9 33–61
  2/151 - - - 12 72.9 62–87
  2/2 273 53 0.41 53 57.5 30–75
5 2/15 224 45 0.25 45 52.6 30–64
  2/2 44 8 0.18 9 57.9 44–72
  15/15 231 46 0.51 46 65.0 41–78
  1. 1 The number of individuals in the susceptible pools was low (10 to 12 birds), hence an additional susceptible pool was created, which contained the next most susceptible 20% of birds.
  2. Total No., total number of individuals in the F × BT combination; Resistant: number of individuals included in the resistant pool (No.), and proportion of individuals that survived to the end of test (Prop); Susceptible: number included in the susceptible pool (No.), with their mean and range of survival times in days.